用宏观模型模拟新配筋方案小跨高比抗震连梁
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A Macro Model of Seismic Coupling Beams with Small Aspect Ratio Adopting New Reinforcement Arrangement Scheme
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    摘要:

    提出了一种能保证小跨高比连梁良好抗震性能且施工简单的新配筋方案。小跨高比连梁属于两端有约束的反对称弯曲深梁,为典型的非伯努利区构件,其承栽能力预计能较好地用国外近年来提出的“压杆-拉杆模型”进行模拟,但如何模拟这类特殊配筋构件,国内外未见先例。本文根据由试验得出的受力规律,尝试建立适用于这类构件受力特点的特殊压杆-拉杆模型。与试验结果的对比表明,这一宏观模型取得了较好模拟效果。

    Abstract:

    A new reinforcement arrangement scheme was suggested to provide satisfactory seismic performance and good workmanship for the coupling beams with small aspect ratio. Coupling beams with small aspect ratio are counter flexural deep beams with both ends restrained, in which the Bernoulli hypothesis are not valid. Although their load bearing capacity can be predicted with the strut-and-tie model developed recently, how to simulate this kind of beams adopting new reinforcement arrangement is still a problem. A macroscopic strut-and-tie model is thus presented for these coupling beams. Good agreement with experimental results is achieved.

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赵杰林,傅剑平,白绍良.用宏观模型模拟新配筋方案小跨高比抗震连梁[J].土木与环境工程学报(中英文),2004,26(1):68-72. ZHAO Jie-lin, FU Jian-ping, BAI Shao-liang. A Macro Model of Seismic Coupling Beams with Small Aspect Ratio Adopting New Reinforcement Arrangement Scheme[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2004,26(1):68-72.10.11835/j. issn.1674-4764.2004.01.014

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  • 最后修改日期:2003-08-25
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